Question

Given that `g (x)` = `2x^2` −10 Please solve `g(x)` = 8?

`2x^2`

Answer 1

`x=+-3`

Explanation:

`g(x)=2x^2-10`
`g(x)=8`

ie
`2x^2-10=8`
`2x^2=18`
`x^2=9`
`x=+-3`